Pricing Total field not updating and some UI issues

Hi,
I've come across a few issues with the Quantity pricing field and the enhanced UI.

I've built a form using just pricing fields and some conditional logic. i.e Drop-down 2 only displays if a particular value in drop-down 1 is selected. The order of my fields is as follows...

Drop-down 1: select product
Drop-down 2: select hire duration
Drop-down 3: quantity
Text-field: total

Issue 1:
If I set all fields to use "enable enhanced user interface" the total field does NOT update. I found that it was the "quantity drop-down" that was the problem, once I turned the "enhanced user interface" off the Total started to work. But now my form looks inconsistent as the other drop-downs look much much better with the enhanced UI.

Issue 2:
Also noticed that if I change the Quantity drop-down into a "Number" type field, when I type in a number (i.e 2) there is nothing to force the Total field to update. Its like there is no change or loss of focus detected on this number field to force the Total field to update.

Issue 3:
When the form fields are using enhanced UI - when you trip the validation it re-sets all the drop-downs back to non enhanced UI when it displays submission errors to the user.

Issue 4:
Not sure if you are supporting IE7?
If so, if you have "enhanced UI" drop-downs one after the other. When you go back to select an option from the first one - the drop-down options disappear under the lower drop-down rather than over the drop-down like the other browsers tested.

I'm using WP 3.2.1 and GF 1.6.1 on Mac OS X Lion using Chrome. Also testing in IE 7,8,9 on Vista
p.s my shortcode uses "ajax='true'"

p.s.s sorry its on my localhost machine at the moment
Many thanks

ax10

Forgot to share the URL here: http://8ply.org/viplate2011/store/cowboys-texans-2012/

Carl, thanks for the detailed reply.

My theme does support wp_head() and wp_footer(). I am using a ithemes Builder theme with child theme.

I have the total updating now. I had originally deactivated all plugins except Cart66 and GravityForms. I had never deactivated Cart66 because it is using the GravityForm I was having trouble with and displaying it through a Cart66 shortcode. Out of curiosity, I deactivated my Gravityform and noticed that the Cart66 shortcode was using ajax="false". So, I deactivated Cart66 and added the shortcode for my Gravityform directly to my store page, and voila the total field started updating. -- (On a side note, I can style the rest of the form, but try as I might I can't seem to style the "Total" field. Even using the css path that Firebug shows me, I still can't seem to style the Total field.)

To continue, I then activated Cart66 again, and the form still works. I suppose Cart66 isn't as integrated with Gravityforms as they claim it to be. My site is still on a development server, so I guess it isn't too late to choose a different shopping cart.

Is there any particular e-commerce plugin that you guys would recommend over the others? I'm sure you guys know best which ones integrate well with Gravityforms. I first purchased a Gravityform license some time ago, but honestly haven't actually started working with your plugin til here very recently. Appears to be a very good, powerful plugin. No wonder so many developers and users rave about it.

Also, I would like to thank the team for all the documentation provided for Gravityforms. Styling the forms is a major pain, but all your documentation is certainly a great help.

Thanks Carl. Hope you had a great Thanksgiving.